foo = null
bar = null
baz {
  qux = 42
  quux = null
  corge = new Listing {
    null
    1337
    null
    "Hello World"
  }
  grault = new Mapping {
    ["garply"] = null
    ["waldo"] = 42
    [new Listing {
      "pigeon"
    }] = null
  }
  thud = Pair(new Dynamic {}, new Listing {})
}

output {
  renderer = new PcfRenderer {
    omitNullProperties = true
  }
}
